A Telegram bot written in C++ that act as an API.

* It exposes a HTTP interface
* Other programs can POST to this interface with a JSON payload to
  make the bot post a message
* Other programs can subscribe to a chat’s messages via a HTTP hook.
  Whenever the bot see a message in the chat, it POSTs the info of the
  message to the programs HTTP callback endpoint.
* Use Cmake for build. Use [libmw](https://github.com/MetroWind/libmw)
  for HTTP server and HTTP client, and various tools. You can find an
  example project using libmw at @shrt.